纤维素微球中明亮持久的过氧化物水溶液化学发光。

IF 2.6 4区生物学 Q3 BIOCHEMISTRY & MOLECULAR BIOLOGY

Photochemistry and Photobiology Pub Date : 2024-11-19 DOI:10.1111/php.14040

Maidileyvis C Cabello, Erick L Bastos, Omar A A El Seoud, Wilhelm J Baader

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引用次数: 0

摘要

水会降低过氧草酸盐化学发光的亮度，部分原因是草酸盐试剂发生了水解。在这里，我们展示了将草酸酯和荧光激活剂封装在纤维素酯微球中，与不封装的水中相同反应相比，发射强度增加了 30 倍，而发射强度衰减速率常数则低得多。发射强度、速率常数和化学发光量子产率随着过氧化氢浓度的增加而增加。这些结果拓展了化学发光的应用潜力，有助于开发超灵敏分析方法。

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Bright and long-lasting aqueous peroxyoxalate chemiluminescence in cellulose microspheres.

Water decreases the brightness of the peroxyoxalate chemiluminescence partially due to the hydrolysis of the oxalate reagent. Here, we show that encapsulation of an oxalate ester and the fluorescent activator in microspheres of cellulose esters increases the emission intensity 30 times compared to the same reaction in water without encapsulation, whereas the emission intensity decay rate constants are considerably lower. Emission intensities, rate constants and chemiluminescence quantum yields increase with increasing hydrogen peroxide concentrations. These results expand the potential of application of chemiluminescence, contributing for the development of ultrasensitive analytical methods.

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来源期刊

Photochemistry and Photobiology 生物-生化与分子生物学

CiteScore

6.70

自引率

12.10%

发文量

171

审稿时长

2.7 months

期刊介绍： Photochemistry and Photobiology publishes original research articles and reviews on current topics in photoscience. Topics span from the primary interaction of light with molecules, cells, and tissue to the subsequent biological responses, representing disciplinary and interdisciplinary research in the fields of chemistry, physics, biology, and medicine. Photochemistry and Photobiology is the official journal of the American Society for Photobiology.